Bluedio V (Victory) Pro Patented PPS12 Drivers Wireless Bluetooth Over the ear Headphones (Black)
<br />
<br />1.PPS 12 Exclusive Acoustics Technology
<br />2.Transcendent S/PDIF Optical Transmission
<br />3.Lossless aptx-LL transmission with low latency
<br />4.Sharing music wirelessly between two headphones
<br />5.Totally new playing method: touch-and-drag operation
<br />6.Multiple ways of connection
<br />7.Automatic lock design to avoid accidental damage
<br />8.Ergonomic design to ensure comfortable wearing
<br />
<br />Warranty and Customer Service information:
<br />1 year warranty from the date of purchase
<br />
<br />Specifications
<br />Bluetooth version: 4.1
<br />Bluetooth operating range: up to 10m (free space)
<br />Frequency range: 2.4GHz-2.48GHz
<br />Frequency response: 10Hz-22,000Hz
<br />Drivers:  50mm*2;  30mm*2;  20mm*8
<br />Impedance: 42  (50mm)*2; 32  (30mm)*2; 32  (20mm)*8
<br />Bluetooth profiles: aptx , aptx-LL , A2DP, AVRCP, HSP, HFP
<br />Digital audio decode format: IEC-61973, PCM 24bit@48KHz 
<br />Optical music time: about 40 hours
<br />Bluetooth music/talk time: about 25 hours
<br />Standby time: about 1000 hours
<br />Charging time: 2.5 hours for full charge
<br />Headphones dimensions: 17.6cm*9cm*18.8cm
<br />Package dimensions: 12.8cm*25.5cm*25cm
<br />Headphones weight: 446g   
<br />Package weight: 1977g
<br />
<br />Seller Warranty Description
<br />1 year warranty from the date of purchase